WN3854 · SWA3854

SWA3854 over the last 30 days

As of 2026-10-26

SWA3854 is operated by Southwest Airlines on the route St. Louis Lambert International Airport (STL/KSTL) → Denver International Airport (DEN/KDEN). It usually takes off around 23:49 UTC (18:49 local time, STL). It usually lands around 01:39 UTC (19:39 local time, DEN). Most frequent aircraft type: BOEING 737-700 (B737).

Days with an observed flight (last 30 days)

13/30

Days of the week with an observed flight

Tue, Wed

Typical take-off

23:49 UTC · 18:49 local time (STL)

Typical landing

01:39 UTC · 19:39 local time (DEN)

Typical time airborne

116 min

Median departure deviation from the usual time on this route

+8 min

Departures within 15 minutes of the usual time

66 %

Departures measured

128

Our measurement against the usual departure time of the route, from our own observations over the last 28 days; the figures cover all flights of this airline on the route.

Aircraft types on this flight (last 30 days)

• BOEING 737-700 (B737) — Number of flights: 10
• BOEING 737 MAX 8 (B38M) — Number of flights: 6
• BOEING 737-800 (B738) — Number of flights: 2

Aircraft in the last 7 days

• N207WN · BOEING 737-700 2026-10-26
• N8997Q · BOEING 737 MAX 8 2026-10-21
• N8656B · BOEING 737-800 2026-10-20

Related flights on this route

• All flights KSTL – KDEN